1650-00-723-5782 CAP,VALVE Index 4820-00-723-5785 DISK,VALVE

National Stock Number:
4820-00-723-5783

Federal Supply Class:
4820

National Item Identification Number:
007235783

Description:
SEAT,VALVE

Detail:
A replaceable item designed to provide a circular stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see INSERT, ENGINE VALVE SEAT.


Manufacturer Information:
1197899643EATON AEROSPACE LLC
4820PL06545379009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH


Techincal Specification:
BODY INSIDE DIAMETER0.039 INCHES MINIMUM AND 0.040 INCHES MAXIMUM
BODY OUTSIDE DIAMETER0.250 INCHES MINIMUM AND 0.262 INCHES MAXIMUM
BODY STEPPED INSIDE DIAMETER0.039 INCHES MINIMUM AND 0.040 INCHES MAXIMUM SECOND STEP
BODY STEPPED INSIDE DIAMETER0.156 INCHES NOMINAL FIRST STEP
FLANGE DIAMETER0.375 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.095 INCHES NOMINAL
HARDNESS RATING55.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM BODY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 440C FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
SEATING SURFACE SHAPEFLAT
SPECIAL FEATURESFLANGE DIA 0.3740 IN. MIN,FLANGE DIA 0.3745 IN. MAX
STYLE DESIGNATORPLAIN FLANGED
SURFACE TREATMENTPASSIVATE OVERALL
UNDER FLANGE HEIGHT0.080 INCHES MINIMUM AND 0.085 INCHES MAXIMUM


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